labarai

Polyethylene (UHMW-PE) wani nau'i ne na filastik injiniyan thermoplastic tare da tsarin layin layi da ingantattun kaddarorin.
Kafin shekarun 1980, matsakaicin ci gaban shekara-shekara na duniya ya kasance 8.5%.Bayan shekarun 1980, yawan ci gaban ya kai 15% ~ 20%.Matsakaicin ci gaban shekara-shekara a kasar Sin ya haura kashi 30%.A cikin 1978, yawan amfanin duniya ya kai ton 12,000 ~ 12,500, kuma a cikin 1990, buƙatun duniya ya kai tan 50,000, wanda Amurka ta ɗauki kashi 70%.Daga shekarar 2007 zuwa 2009, kasar Sin sannu a hankali ta zama masana'antar robobi ta injiniya a duniya, kuma masana'antar polyethylene mai nauyi mai nauyin gaske ta bunkasa cikin sauri.Tarihin cigaba shine kamar haka:
Babban ka'idar ultrahigh kwayoyin nauyin fiber polyethylene an fara gabatar da shi a cikin 1930s.
Fitowar gel kadi da kadi na filastik ya yi babban ci gaba a fasaha na polyethylene mai nauyi mai girman gaske.
A cikin 1970s, Capaccio da Ward na Jami'ar Leeds a Burtaniya sun fara haɓaka babban fiber polyethylene mai nauyin kwayoyin halitta mai nauyin 100,000.
A shekarar 1964, an yi nasarar bunkasa shi da kuma sanya shi cikin masana'antu a kasar Sin.
A cikin 1975, Netherlands ta ƙirƙira Gelspinning ta amfani da decalin a matsayin ƙarfi, ta yi nasarar shirya fiber UHMWPE, kuma ta nemi takardar haƙƙin mallaka a 1979. Bayan shekaru goma na bincike, an tabbatar da cewa hanyar juyawa gel ɗin hanya ce mai inganci don samar da babban ƙarfin polyethylene fiber. wanda ke da kyakkyawar makoma ta masana'antu.
A cikin 1983, polyethylene (UHMWPE) fiber fiber an samar da fiber a cikin Japan ta hanyar fitar da gel da babban hanyar shimfidawa tare da paraffin azaman sauran ƙarfi.
A kasar Sin, matsananci high kwayoyin nauyi polyethylene bututu da aka jera a matsayin key inganta shirin na kasa kimiyya da fasaha nasarori a 2001 da Ma'aikatar Kimiyya da Fasaha (2000) 056 daftarin aiki, wanda nasa ne na sabon sinadarai kayan da sababbin kayayyakin.Ma'aikatar Kimiyya da Fasaha ta Hukumar Tsare-tsare ta Jiha ta jera bututun polyethylene mai nauyi mai nauyi a matsayin wani muhimmin aiki a muhimmin fanni na masana'antar fasaha.
Gano hanyoyin
Ultra-high kwayoyin nauyi polyethylene ne wani nau'i na polymer fili, yana da wuya a aiwatar, kuma yana da super lalacewa juriya, kai lubricating, high ƙarfi, barga sinadaran Properties, karfi anti-tsufa yi, don haka a cikin nuna bambanci na gaskiya da ƙarya. polyethylene polymer, dole ne mu kula da halayensa, takamaiman hanyar nuna wariya kamar haka:
1. Ƙa'idar aunawa: yawan samfuran da aka yi da nau'in nau'in nau'in polyethylene mai tsabta yana tsakanin 0.93 da 0.95, ƙananan ƙananan ƙananan, kuma yana iya iyo a kan ruwa.Idan ba polyethylene mai tsabta ba, zai nutse zuwa kasa.
2. Hanyar gani: saman ainihin matsananci-high kwayoyin nauyi polyethylene ne lebur, uniform, santsi da yawa na sashe ne sosai uniform, idan shi ba tsarki polyethylene abu launi ne dim da yawa ba uniform.
3 gefen gwajin Hanyar: tsarki matsananci-high kwayoyin nauyi polyethylene flanging karshen fuska ne zagaye, uniform, santsi, idan ba tsarki polyethylene abu flanging karshen fuska crack, kuma bayan dumama flanging zai bayyana slag sabon abu.